CN102015954A - Adhesive composition and optical film using the same - Google Patents
Adhesive composition and optical film using the same Download PDFInfo
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- CN102015954A CN102015954A CN2009801161239A CN200980116123A CN102015954A CN 102015954 A CN102015954 A CN 102015954A CN 2009801161239 A CN2009801161239 A CN 2009801161239A CN 200980116123 A CN200980116123 A CN 200980116123A CN 102015954 A CN102015954 A CN 102015954A
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- 239000000203 mixture Substances 0.000 title claims abstract description 52
- 239000000853 adhesive Substances 0.000 title abstract description 13
- 230000001070 adhesive effect Effects 0.000 title abstract description 13
- 239000012788 optical film Substances 0.000 title abstract 2
- 150000001875 compounds Chemical class 0.000 claims abstract description 44
- 239000011230 binding agent Substances 0.000 claims description 66
- 230000010287 polarization Effects 0.000 claims description 45
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 36
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 30
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 30
- 125000002393 azetidinyl group Chemical group 0.000 claims description 23
- 230000014509 gene expression Effects 0.000 claims description 21
- 238000003851 corona treatment Methods 0.000 claims description 16
- 125000003368 amide group Chemical group 0.000 claims description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims description 12
- 239000001257 hydrogen Substances 0.000 claims description 12
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 229920002799 BoPET Polymers 0.000 claims description 9
- 125000000217 alkyl group Chemical group 0.000 claims description 9
- 150000001450 anions Chemical class 0.000 claims description 9
- 125000003262 carboxylic acid ester group Chemical group [H]C([H])([*:2])OC(=O)C([H])([H])[*:1] 0.000 claims description 9
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 9
- 238000000746 purification Methods 0.000 claims description 9
- 229920000636 poly(norbornene) polymer Polymers 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 125000000468 ketone group Chemical group 0.000 claims description 5
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 4
- 229920006289 polycarbonate film Polymers 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 238000004381 surface treatment Methods 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 6
- 239000012790 adhesive layer Substances 0.000 abstract description 3
- HONIICLYMWZJFZ-UHFFFAOYSA-N azetidine Chemical group C1CNC1 HONIICLYMWZJFZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 19
- 230000003287 optical effect Effects 0.000 description 13
- 238000002360 preparation method Methods 0.000 description 13
- 239000003795 chemical substances by application Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000007864 aqueous solution Substances 0.000 description 7
- 238000002834 transmittance Methods 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- -1 acryl Chemical group 0.000 description 3
- 150000002431 hydrogen Chemical group 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 210000002858 crystal cell Anatomy 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000004299 exfoliation Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- 125000002339 acetoacetyl group Chemical group O=C([*])C([H])([H])C(=O)C([H])([H])[H] 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- DQHILPAWOOYSNZ-UHFFFAOYSA-N azetidine Chemical group N1CCC1.N1CCC1 DQHILPAWOOYSNZ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 150000001925 cycloalkenes Chemical class 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 238000007601 warm air drying Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/02—Polyamines
- C08G73/028—Polyamidoamines
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J179/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09J161/00 - C09J177/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1057—Polyimides containing other atoms than carbon, hydrogen, nitrogen or oxygen in the main chain
- C08G73/1064—Polyimides containing other atoms than carbon, hydrogen, nitrogen or oxygen in the main chain containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J177/00—Adhesives based on polyamides obtained by reactions forming a carboxylic amide link in the main chain; Adhesives based on derivatives of such polymers
- C09J177/06—Polyamides derived from polyamines and polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J179/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09J161/00 - C09J177/00
- C09J179/02—Polyamines
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
- G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polarising Elements (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to an adhesive composition containing a compound having an azetidinium functional group, and an optical film and a polarizer both containing an adhesive layer formed using the adhesive composition.
Description
Technical field
The blooming that the invention provides a kind of binder composition and use this binder composition.More particularly, the blooming that the invention provides a kind of binder composition and use this binder composition, described binder composition have excellent bond properties and can be used in the blooming that needs the transparency.
The application requires the right of priority to the korean patent application 10-2008-0032563 of Korea S Department of Intellectual Property submission on April 8th, 2008, and its disclosed full content is incorporated this paper by reference into.
Background technology
Usually, polarization plates has following structure: wherein come lamination triacetyl cellulose (hereinafter, being called TAC) film (Fig. 1) by using by the aqueous adhesive of forming based on the aqueous solution of PVA on the both sides of the polaroid (polarizing coating) of polyvinyl alcohol (PVA) composition.If under the situation that does not have independent compensate film, use polarization plates can make the visual angle deterioration with said structure.Therefore, use zero-lag TAC (hereinafter, being called Z-TAC) film to replace a kind of in two kinds of TAC films sometimes, in the Z-TAC film, take place hardly to postpone in thickness direction retardation and the face, therefore improved the visual angle.
Yet because for the moisture of the film that contains the TAC composition, Z-TAC is very poor basically, when life-time service, the problem of the weather resistance that produces because of dimensional change occurred.In order to address this problem, attempted using the film of composition, for example based on the resin of cycloolefin or based on the resin (acryl-based resin) of acrylate with high wet fastness and low retardance.Especially, for the film that comprises based on the composition of acrylate, known its be favourable aspect optical property, weather resistance and the cost.
When using the TAC film to prepare polarization plates as protective membrane, for the polaroid-bindnig of PVA composition, mainly use the PVA aqueous adhesive.Simultaneously, in order to improve bond strength, carry out alkaline purification or corona treatment to the surface of TAC film.Yet, when using acrylate films (acryl film) and PVA aqueous adhesive to prepare polarization plates, be difficult to by using alkaline purification or corona treatment to guarantee bond strength easily.For known TAC film because introduced hydrophilic radical (for example hydroxyl) on the surface of film by alkaline purification or corona treatment, by with hydrogen bonding based on the tackiness agent of PVA, can easily guarantee bond strength.Yet, even the surface that makes acrylate films is through corona treatment or Cement Composite Treated by Plasma, because the quantity of the hydrophilic radical of introducing is few, with the hydrogen bonding based on the tackiness agent of PVA be inadequate, make sufficient bond strength between the polaroid that can't guarantee acrylate films and PVA composition.
In order to adhere to acrylate films and polaroid, can use UV curable adhesive based on acrylate, but alleged occurrence following point: (1) is in the polarization plates preparation technology of routine, because use aqueous adhesive, under the situation of using the UV curable adhesive, need independent UV program curing, and have volatile flammable monomer, explosion-proof equipment that need be extra because use; (2) thickness of known PVA aqueous adhesive can be made in the 100nm by control solids content and process management, but be difficult to will be based on the gauge control of the UV curable adhesive of acrylate at 1nm with interior or lower, make increase that the problem of polarization plates fracture can take place along with the brittleness of binder layer; And (3) can realize bonding with acrylate films easily, but be not easy to guarantee the bond strength with polaroid.In order to guarantee and the bond strength of polaroid, can comprise a large amount of acid-reaction groups, but in view of the technology corrosion that is caused by acid and operating environment, this not preferred.
Therefore, use the polarization plates of acrylate films, use that to can be used in already known processes and the aqueous adhesive of stable polarization plates performance can relatively easily be provided be favourable as the protective membrane of polaroid in order to prepare.Therefore, need develop the aqueous adhesive that is more suitable for polarization plates and blooming.
Summary of the invention
An object of the present invention is to provide a kind of binder composition, this binder composition has excellent bond properties and can not reduce the optical property and the weather resistance of blooming when it is used to blooming.Especially, when using acrylate films as the protective membrane of polaroid, described binder composition provides excellent bond properties and can not reduce the optical property and the weather resistance of the polarization plates of preparation thus polaroid.In addition, an object of the present invention is to provide by using the blooming and the polarization plates of described binder combination preparation.
In order to realize above-mentioned purpose of the present invention, the invention provides a kind of binder composition of representing and comprise the compound that contains azetidine (azetidinium) functional group by following general formula 1:
[general formula 1]
Wherein, X and Y are aliphatic hydrocarbyl, and at least one among X and the Y is the one or more aliphatic hydrocarbyl that comprises from amido, amide group and the ketone group, and X and Y can form ring by being connected to each other,
R1～R6 is selected from hydrogen, hydroxyl, C separately
1～C
20In aliphatic hydrocarbyl, alkyl carboxylic acid ester group and the cyano group,
A
-Be monovalent anion, and
N is 30～7, in 000 the scope.
One of at least comprise hydrophilic radical among preferred X and the Y.The weight-average molecular weight of the compound of preferred formula 1 expression is 10,000～2, in 000,000 the scope.
In addition, the invention provides and have the blooming that comprises two-layer above laminate structure, described blooming comprises binder layer, by using binder composition to form, described binder composition comprises the compound that contains azetidine functional group to this binder layer at least one interface between the described film.
In addition, the invention provides polarization plates with laminate structure, first film, polaroid and second film stratification successively wherein, described polarization plates comprises binder layer, and this binder layer comprises the compound that contains azetidine functional group by use one of at least and between the polaroid in described first film and second film binder composition forms.
In addition, the invention provides the electron device that comprises described blooming or polarization plates.
Because binder composition according to the present invention has excellent bond properties, and in the transparency that does not reduce blooming, can be applied to have in the already known processes of blooming of laminate structure and do not need extra technology and device, therefore, it can be used to prepare blooming.In addition, comprise by the blooming that uses the binder layer for preparing according to binder composition of the present invention having excellent weather resistance.Especially, when using acrylate films as the protective membrane of polaroid, described binder composition provides excellent bond properties and can not reduce the optical property and the weather resistance of the polarization plates of preparation thus polaroid.
Description of drawings
Fig. 1 has illustrated the structure of known polarization plate;
Fig. 2 has illustrated the structure according to the polarization plates of an embodiment of the invention;
Fig. 3 has illustrated the structure according to the polarization plates of an embodiment of the invention; And
Fig. 4 is the figure that scratch that explanation is used to estimate bond strength is peeled off evaluation method.
Embodiment
Blooming according to the present invention is characterised in that described blooming comprises that described binder composition comprises the compound that contains azetidine functional group by the binder layer that uses binder composition to form.
The described compound that contains azetidine functional group can react by azetidine functional group and the lip-deep functional group of blooming (for example carboxyl), and described compound has just (+) electric charge.Therefore, described compound is to having excellent wetting properties through corona treatment and Cement Composite Treated by Plasma etc. at its surperficial possess hydrophilic property group or the blooming that is rich in negative (-) electric charge.In addition,, can form hydrophilic radical by the open loop of azetidine functional group, and described hydrophilic radical can for hydroxyl bonded hydrogen on the surface of described blooming (for example polaroid).To this, except azetidine functional group, the described compound that contains azetidine functional group can further comprise hydrophilic radical, for example hydroxyl, carboxyl, amido, amide group etc.Based on same reason, to compare with known tackiness agent (for example based on PVA tackiness agent), the compound that contains azetidine functional group can provide excellent bond properties.In addition, can in binder layer, carry out self-crosslinking because contain the compound of azetidine functional group, improved the water tolerance of binder layer, made blooming and use the weather resistance of the polarization plates of this blooming to improve therefore to have prevented peeling off between the film under severe rugged environment.
As the compound that contains azetidine functional group, can use compound by following general formula 1 expression:
[general formula 1]
Wherein, X and Y are aliphatic hydrocarbyl, and at least one among X and the Y is the one or more aliphatic hydrocarbyl that comprises from amido, amide group and the ketone group, and X and Y can form ring by being connected to each other,
R1～R6 is selected from hydrogen, hydroxyl, C separately
1～C
20In aliphatic hydrocarbyl, alkyl carboxylic acid ester group and the cyano group,
A
-Be monovalent anion, and
N is 30～7, in 000 the scope.
One of at least comprise hydrophilic radical among preferred X and the Y.The weight-average molecular weight of the compound of preferred formula 1 expression is 10,000～2, in 000,000 the scope.
The compound of described general formula 1 expression comprises the compound by following general formula 2 expressions.
[general formula 2]
Wherein, X ', X " and the Y ' C that respectively does for oneself
1～C
20Aliphatic hydrocarbyl,
R1～R6 is selected from hydrogen, hydroxyl, C separately
1～C
20In aliphatic hydrocarbyl, alkyl carboxylic acid ester group and the cyano group,
A
-Be monovalent anion, and
N is 30～7, in 000 the scope.
The compound of described general formula 2 expressions comprises by polyaminoamide-Epicholorohydrin (polyaminoamide-epichlorohydrin) of representing with following formula 3 (PAE):
[formula 3]
Wherein, n is 30～7, in 000 the scope.
Can further comprise solvent according to binder composition of the present invention, for example be used to form the water of binder layer.At this moment, the compound concentrations that contains azetidine functional group is in the scope of 0.1～30wt%, and is and preferred in the scope of 0.5～10wt%.According to the pH value of binder composition of the present invention in 2～11 scope, and more preferably in 4～10 scope.Can control pH value by using the method add alkali etc. therein according to binder composition of the present invention.Kind to described alkali has no particular limits, but its preferred example comprises NaOH, KOH, NH
4OH etc.
Can further comprise resin according to binder composition of the present invention based on polyvinyl alcohol (PVA).By further comprising resin, can further improve bond properties with the blooming polaroid or the TAC film of polyvinyl alcohol (for example based on) based on polyvinyl alcohol.Especially, use the sex change PVA comprise acetoacetyl etc. to bond properties and with the crosslinked of the compound that contains azetidine functional group be useful.As concrete example, can use Chemical by Japan Synthetic, Co., Gohsefimer (trade mark) Z-100 that Ltd. produces, Z-200, Z-200H, Z-210, Z-220, Z-320 etc., but be not limited thereto.Simultaneously, the weight ratio based on the resin of polyvinyl alcohol is had no particular limits, can change its scope a little according to kind that will adherent film.For example, when will be based on the polaroid of polyvinyl alcohol with based on the film of acrylate when adhering to each other, based on the compound that contains azetidine functional group of 100 weight parts, preferred use amount based on the resin of polyvinyl alcohol in the scope of 10 weight parts～1,000 weight part.When based on the amount of the resin of polyvinyl alcohol during,,, can there be problem to the bond strength variation of acrylate films when its content during greater than 1,000 weight part to the bond strength variation of polyvinyl alcohol polarizer or TAC film less than 10 weight parts.
The invention provides a kind of blooming, this blooming has wherein to make and has two stratified structures of the film with the upper strata, and comprise and draw together binder layer, this binder layer comprises the binder composition formation of the compound that contains azetidine functional group by use at least one interface between the described film.In the present invention, described blooming just is meant the film of carrying out optical function, and comprise from say narrowly transmittance at the transparent film more than 80% and transmittance at any blooming below 50%, just passable as long as described film is carried out specific optical function (as polarization plates).
Layered film is had no particular limits, but can use film based on acrylate, PET film, especially through the PET film handled based on the primary coat of acrylate, TAC film, COP film, PC (polycarbonate) film, based on the film of PNB (polynorbornene) etc.Especially, compare, when using acrylate films and pass through the PET film of handling based on the primary coat of acrylate, can greatly improve bond strength with using known tackiness agent based on polyvinyl alcohol.Layered film can be by identical materials or different material preparations.
If desired, in order to improve bond strength, can carry out surface treatment to layered film.For example, can carry out alkaline purification, corona treatment, Cement Composite Treated by Plasma, primary coat processing etc.
In addition, the invention provides a kind of polarization plates, this polarization plates has the wherein stratified successively structure of first film, polaroid and second film, and comprise and draw together binder layer, this binder layer comprises the compound that contains azetidine functional group by use one of at least and between the polaroid in first film and second film binder composition forms.At this moment, described first film or second film can carry out aforesaid surface treatment.
As described first film and second film, can use film based on acrylate, PET film, especially through the PET film handled based on the primary coat of acrylate, TAC film, COP film, PC (polycarbonate) film, based on the film of PNB (polynorbornene) etc.Described first film and second film can be by identical materials preparations or can be by different material preparations.For example, described first film and second film can all be based on the film of acrylate or TAC film (Fig. 2), or among them any can be based on the film of acrylate and another can be TAC film (Fig. 3).
By using binder composition according to the present invention to form described binder layer, more particularly, by on described film, directly applying described binder composition dry adhesive layer then, perhaps roll dry adhesive layer then, thereby form binder layer by described binder composition of coating between two above films and use pressure roller.The thickness of described binder layer is preferably in the scope of 10～500nm, and more preferably in the scope of 20～200nm.
Preferably according to the transmittance of polarization plates of the present invention in 35～45% scope and degree of polarization more than 98.
Owing to comprise the light transmission of excellence of the binder composition of the compound that contains azetidine functional group, can keep excellent optical property and not reduce the transmittance of the optical articles that makes according to optical articles of the present invention (for example blooming and polarization plates etc.), and, can improve the weather resistance of the optical articles that makes owing to excellent adhesion strength.
Especially, when described binder composition is applied to polarization plates, because under the situation of the variation that does not have independent processing condition, the variation of the optical property of the polaroid that is caused by described binder composition (for example, transparence, degree of polarization and color etc.) almost identical with the situation of using known tackiness agent based on polyvinyl alcohol, so it can be used for big production line alternatively.
The invention provides a kind of electron device, it comprises blooming or polarization plates.As described electron device, liquid crystal display device etc. is arranged.Yet, the kind of described electron device is had no particular limits, as long as it needs blooming or polarization plates just passable.Except described electron device comprises that above-mentioned electron device and electron device as known in the art have identical construction by the binder layer of use according to binder composition formation of the present invention.For example, described electron device can be liquid crystal display device, and it comprises: liquid crystal cell; According to polarization plates of the present invention, it is arranged on the both sides of described liquid crystal cell; And back light unit.
Hereinafter, describe the present invention in detail with reference to embodiment.Yet the present invention can and should not be construed as the embodiment that only limits to propose here with the different ways embodiment.On the contrary, providing these embodiment is in order intactly to pass on notion of the present invention to those skilled in the art.
Embodiment
Embodiment 1
By dilute Kymene-557H (compound that contains azetidine group and amido) (Hercules Korea with pure water, the 12.5wt% aqueous solution) aqueous solution of preparation 6wt%, and use this solution to adhere on the both sides of polaroid through the film based on acrylate of corona treatment.For described film based on acrylate, use by OPTES, Co., Ltd. produces and thickness is the T-film of 80 μ m.The surface that makes described film is at 50W/m
2Process corona treatment under the/min condition.Polaroid and its both sides based on the film of acrylate between inject described tackiness agent, roll with pressure roller, and under 80 ℃ of temperature, used warm air drying 5 minutes, thereby make polarization plates.
Embodiment 2
Make Kymene-557H (Hercules Korea at the adding NaOH aqueous solution, the 12.5wt% aqueous solution, pH=5) pH value is after 7, uses with the binder composition of pure water with the 6wt% of its dilution preparation, will adhere on the both sides of polaroid through the film based on acrylate of corona treatment.
Embodiment 3
Use the binder composition of embodiment 2, will adhere on the side of polaroid through the film based on acrylate of corona treatment, and will adhere on the opposite side of this polaroid through the TAC film of alkaline purification.
Embodiment 4
Kymene-557H (Hercules Korea based on 100 weight parts, 12.5wt%), modified polyvinyl alcohol resin Gohsefimer Z-200 (the Japan Synthetic Chemical that adds 100 weight parts, Co., Ltd.), it is 7 that the adding NaOH aqueous solution makes its pH value, use is with 4.5% the binder composition of pure water with its dilution preparation, to adhere on the side of polaroid through the film based on acrylate of corona treatment, and will adhere on the opposite side of this polaroid through the TAC film of alkaline purification.
The comparative example 1
Polyvinyl alcohol water solution by polyethylene dissolving alcohol resin in pure water (mean polymerisation degree 2400, saponification deg 99.9%) preparation 3wt%.Use this solution, will adhere on the both sides of polaroid through the film based on acrylate of corona treatment.
The comparative example 2
By dissolving modified polyvinyl alcohol resin Gohsefimer Z-200 (Japan SyntheticChemical in pure water, Co., Ltd.) the modified polyvinyl alcohol aqueous solution of preparation 4.5wt%, and modified polyvinyl alcohol based on 100 weight parts, to the metallic compound linking agent that wherein adds 10 weight parts based on amine, thus the preparation tackiness agent.Use this tackiness agent, will adhere on the both sides of polaroid through the film based on acrylate of corona treatment.
The comparative example 3
Use comparative example 2 tackiness agent, will adhere on the side of polaroid through the film based on acrylate of corona treatment, and will adhere on the opposite side of this polaroid through the TAC film of alkaline purification.
Evaluation method
1. bond strength
After forming scratch on the surface of polarization plates, show scratch extent of exfoliation (Fig. 4) on every side with cutting edge with percentage ratio, when this value is low, the bond strength excellence.
2. water tolerance
Use pressure sensitive adhesive that one side of polarization plates is adhered on the sheet glass, it is immersed in the thermostatic bath that keeps 60 ℃ of temperature, and through after 4 hours and 48 hours, according to the contraction of polaroid and the extent of exfoliation evaluation water tolerance of protective membrane.
3. optical property
Use monomer transmittance (Ts), the rectilinear transmittance (Tp) of spectrophotometer measurement polarization plates and the transmittance (Tc) that intersects, and use following formula to calculate degree of polarization.
(formula 1) degree of polarization (P)=√ (Tp-Tc)/(Tp+Tc)
Evaluation result
The evaluation result of the bond strength of [table 1] polarization plates, water tolerance and optical property
* A: acrylate films
＊K1：6wt％Kymene-557H(pH＝5)
＊K2：6wt％Kymene-557H(pH＝7)
＊K3：4.5wt％Kymene-557H∶Z200＝1∶1(pH＝7)
＊P1：3％PVA
* P2:4.5%Z200: linking agent=10: 1
Claims (19)
1. binder composition, it comprises:
The compound that contains azetidine functional group by following general formula 1 expression:
[general formula 1]
Wherein, X and Y are aliphatic hydrocarbyl, and at least one among X and the Y is the one or more aliphatic hydrocarbyl that comprises from amido, amide group and the ketone group, and X and Y can form ring by being connected to each other,
R1～R6 is selected from hydrogen, hydroxyl, C separately
1～C
20In aliphatic hydrocarbyl, alkyl carboxylic acid ester group and the cyano group,
A
-Be monovalent anion, and
N is 30～7, in 000 the scope.
2. binder composition according to claim 1, wherein, the compound of described general formula 1 expression is the compound of following general formula 2 expressions:
[general formula 2]
Wherein, X ', X " and the Y ' C that respectively does for oneself
1～C
20Aliphatic hydrocarbyl,
R1～R6 is selected from hydrogen, hydroxyl, C separately
1～C
20In aliphatic hydrocarbyl, alkyl carboxylic acid ester group and the cyano group,
A
-Be monovalent anion,
N is 30～7, in 000 the scope.
3. binder composition according to claim 2, wherein, the compound of described general formula 2 expressions is the compound with following formula 3 expressions:
[formula 3]
Wherein, n is 30～7, in 000 the scope.
4. binder composition according to claim 1, wherein, the pH value is in 4～10 scope.
5. binder composition according to claim 1, it further comprises: alkali.
6. binder composition according to claim 1, it further comprises: based on the resin of polyvinyl alcohol.
7. blooming, it has and comprises two-layer above laminate structure, and this blooming comprises:
Binder layer, this binder layer comprise the binder composition formation of the compound that contains azetidine functional group by use at least one interface between the described film.
8. blooming according to claim 7, wherein, the serve as reasons compound of following general formula 1 expression of the described compound that contains azetidine functional group:
[general formula 1]
Wherein, X and Y are aliphatic hydrocarbyl, and at least one among X and the Y is the one or more aliphatic hydrocarbyl that comprises from amido, amide group and the ketone group, and X and Y can form ring by being connected to each other,
R1～R6 is selected from hydrogen, hydroxyl, C separately
1～C
20In aliphatic hydrocarbyl, alkyl carboxylic acid ester group and the cyano group,
A
-Be monovalent anion, and
N is 30～7, in 000 the scope.
9. blooming according to claim 8, wherein, the compound of described general formula 1 expression is the compound of following general formula 2 expressions:
[general formula 2]
Wherein, X ', X " and the Y ' C that respectively does for oneself
1～C
20Aliphatic hydrocarbyl,
R1～R6 is selected from hydrogen, hydroxyl, C separately
1～C
20In aliphatic hydrocarbyl, alkyl carboxylic acid ester group and the cyano group,
A
-Be monovalent anion, and
N is 30～7, in 000 the scope.
10. blooming according to claim 9, wherein, the compound of described general formula 2 expressions is the compound with following formula 3 expressions:
[formula 3]
Wherein, n is 30～7, in 000 the scope.
11. blooming according to claim 7, wherein, described film at least a be selected from film based on acrylate, PET film, through in PET film, TAC film, COP film, PC (polycarbonate) film and the film handled based on the primary coat of acrylate based on PNB (polynorbornene).
12. blooming according to claim 7, wherein, at least one side that makes at least a described film is through being selected from one or more surface treatments in alkaline purification, corona treatment, Cement Composite Treated by Plasma and the primary coat processing.
13. a polarization plates, it has the wherein stratified successively laminate structure of first film, polaroid and second film, and this polarization plates comprises:
Binder layer, this binder layer comprise the compound that contains azetidine functional group by use one of at least and between the polaroid in described first film and second film binder composition forms.
14. polarization plates according to claim 13, wherein, the serve as reasons compound of following general formula 1 expression of the described compound that contains azetidine functional group:
[general formula 1]
Wherein, X and Y are aliphatic hydrocarbyl, and at least one among X and the Y is the one or more aliphatic hydrocarbyl that comprises from amido, amide group and the ketone group, and X and Y can form ring by being connected to each other,
R1～R6 is selected from hydrogen, hydroxyl, C separately
1～C
20In aliphatic hydrocarbyl, alkyl carboxylic acid ester group and the cyano group,
A
-Be monovalent anion, and
N is 30～7, in 000 the scope.
15. polarization plates according to claim 14, wherein, the compound of described general formula 1 expression is the compound of following general formula 2 expressions:
[general formula 2]
Wherein, X ', X " and the Y ' C that respectively does for oneself
1～C
20Aliphatic hydrocarbyl,
R1-R6 is selected from hydrogen, hydroxyl, C separately
1～C
20In aliphatic hydrocarbyl, alkyl carboxylic acid ester group and the cyano group,
A
-Be monovalent anion, and
N is 30～7, in 000 the scope.
16. polarization plates according to claim 15, wherein, the compound of described general formula 2 expressions is the compound with following formula 3 expressions:
[formula 3]
Wherein, n is 30～7, in 000 the scope.
17. polarization plates according to claim 13, wherein, described first film or second film be selected from film based on acrylate, PET film, through in PET film, TAC film, COP film, PC (polycarbonate) film and the film handled based on the primary coat of acrylate based on PNB (polynorbornene).
18. polarization plates according to claim 13, wherein, at least one side that makes described first film or second film is through being selected from one or more surface treatments in alkaline purification, corona treatment, Cement Composite Treated by Plasma and the primary coat processing.
19. an electron device, it comprises:
According to each described polarization plates in the claim 13～18.
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| KR10-2008-0032563 | 2008-04-08 | ||
| PCT/KR2009/001818 WO2009125980A2 (en) | 2008-04-08 | 2009-04-08 | Adhesive composition and optical film using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104364070A (en) * | 2012-06-14 | 2015-02-18 | 诺华股份有限公司 | Azetidinium-containing copolymers and uses thereof |
| CN113383254A (en) * | 2019-03-12 | 2021-09-10 | 温光株式会社 | Preparation method of high-refraction polarized lens |
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| KR20120032195A (en) * | 2010-09-28 | 2012-04-05 | 동우 화인켐 주식회사 | A polarizing plate and liquid crystal display comprising the same |
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Also Published As
| Publication number | Publication date |
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| TWI386472B (en) | 2013-02-21 |
| WO2009125980A2 (en) | 2009-10-15 |
| CN102015954B (en) | 2013-11-13 |
| JP5446015B2 (en) | 2014-03-19 |
| KR20090107444A (en) | 2009-10-13 |
| JP2011519982A (en) | 2011-07-14 |
| KR101057628B1 (en) | 2011-08-19 |
| CN103396756A (en) | 2013-11-20 |
| CN103396756B (en) | 2015-01-21 |
| WO2009125980A3 (en) | 2010-01-14 |
| TW201000582A (en) | 2010-01-01 |
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